what is zenier barier and what means zone 1,zone 2,and zone 3

2 Answers   Bapco Bahrain Petroleum Company,

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How to Calibrate Vortex Flow transmitter in field

0 Answers  

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what is the difference between Feedback controller and Feed forward controller. and when it is to be used.

3 Answers  

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How to O2 analyzer works?

1 Answers  

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Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

0 Answers  

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How to convert 0-2500mmH2o into kg/hr? Or how to convert mmH2O into kg/hr,t/hr etc

2 Answers  

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What is the loop calibration? Which instrument used to loop calibration and how?

2 Answers   Descon, QCon,

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what is mean by hot loop and cold loop testing, whts different between both

2 Answers   Honeywell, PDO,

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pressure gauge measure static pressure or dynamic pressure?

3 Answers  

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plz exlain the dcs system of ABB sympony hamnony

1 Answers  

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flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty

0 Answers   ONGC,

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What is Process portal A(PPA)?

1 Answers   ABB,

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